JPH1081361A - Unsealing structure of film package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily unseal a film by providing at least one notch continuously provided to a part of a tear-off line in an unsealing structure where the tear-off line is provided on a tack label attaching part of a wrapping body so that a part of the film is torn off with the tear-off line as the starting point when the tack label is peeled off. SOLUTION: A U-shaped tear-off line 2 cut through the thermal cutting is provided on a surface of a film 1 for film wrapping as an unsealing structure, a notch 3 cut using a sharp jig is continuously provided on a lower U-shaped end of the tear-off line 2, and a tack label 4 is attached to the film 1 so as to cover the notch. In unsealing the film, the tack label 4 is pulled up holding a non-attached part 41 and peeled from the film 1. Because an inner side part 21 of the tear-off line 2 is raised in a condition attached to the tack label 4, a space 22 is formed there. A finger is placed in the space to expand it, and the film 1 is torn off from the notch 3 to unseal the film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Field of the Invention The present invention, by tack seal surface affixed film relates unsealing structure of the packaging films and packaging products.

[0002]

2. Description of the Related Art As a means to open the packaging film was packaged in shrink film products, real fair 1-342
There is shown in the Auslegeschrift 15 No. "tack Labeling re prevention structure of the package." This advance engraved beforehand broken cut line in a part of the film, deposited by previously attaching a tack label such as a bar code in that portion, the tangential vicinity tack labels broken film peeled off the tack label to the film packaging is obtained by so torn easily starting the broken cut line. In particular, the opening structure is well known what was used for the packaging of instant cup noodles,
As the shrink film is a film of thatched easy polyvinyl chloride are used. However, in the resin of the polyvinyl chloride is those which generate harmful substances such as incineration, it is desirable to use, for example of polyethylene film from the surface of the for environmental protection.

[0003]

[SUMMARY OF THE INVENTION However, a film of polyethylene as described above has a very extended propensity, even when provided with a opening structure described above, attempting to open the package by the film only extends previously engraved has been the broken cut line portion even, there is a problem that here may not be readily torn it as a starting point. Particularly different from using a very thin film such as containers instant noodle described above, in the packaging using relatively thick material of the film as a packaging container of the semiconductor wafer, fracture of the polyethylene-based film it is difficult to tearing the cut-line part as a starting point.
The present invention has been made in view of the above problems, even in the packaging due to the relatively torn hard film, and aims to provide a open structure can be easily opened film film package by peeling the tack label it is intended to.

[0004]

Means for Solving the Problems] In this end the present invention, engraved a tangential broken tack labeling of the package body tack label is adhered to the surface of the product the packaging film, at the time of peeling of the tack label in the film packaging opening structure such that a portion of the film is yabukita starting from the cut line broken adhere to the tack labels, so as to provide at least one notch which is provided continuously to a portion of the broken cut line one in which the.

Moreover, at least in proximity to the fracture tangential
One cut is obtained as provided for.

[0006]

If it shrinks film by film packaging such PREFERRED EMBODIMENTS extend easily in torn hard polyethylene, those that could not be opened easily in the conventional open structure, further provided with notches, facilitates the notch starting it is that to be able to open to. Further, by providing the cut, the cut under stringent film due transportation work to be prevented that tear starting film near the cut must not be held in a state of being attached to the tack label . Both by peeling the tack labels, since hardly torn stretches the film in the opposite direction be torn in this peeling direction, by providing the notch in a direction opposite to the direction of peeling the tack labels, starting from the dashed cut line It can be tearing open to direction.

[0007] Incidentally, the cuts towards the narrow sharp-shaped in order to facilitate cut open is desirable. However, the cut line broken by conventional thermal switching melts the surrounding portion against the jig,
Since the thin working of sharp shape is difficult, and this cut is suitably better to engraving by a sharp jig without a thermal switch.

[0008]

BRIEF DESCRIPTION based on the respective embodiments of the present invention with reference to the accompanying drawings. Plan view illustrating the opening structure of the embodiment 1 1 Example 1, FIG. 2 is a partial perspective view illustrating the opening process of film packaging by opening the structure of Example 1.

[0009] As shown in FIGS. 1 and 2 (a), in the opening structure of the first embodiment, the film packaging film 1
A cut line 2 fracture was engraved by thermal switch on the surface of, and 3 cuts were connected to the broken cut line 2, and is configured them from Takkura base g 4 affixed to the film 1 to cover.
Fracture tangential 2 is engraved in shape of U, notch 3 is provided at the lower end position of the shaped of the U, it is engraved using a sharp jig (not shown).

[0010] As shown in FIG. 2 (a), is first peeled tack label 4 from the film 1 is pulled up with the unbonded portion 41. At this time, as shown in FIG. 2 (b),
Since the inner portion 21 of the prior art opening structure and fracture similarly cut line 2 rise remain stuck to the tack labels 4 can space 22 at the bottom.

[0011] As shown in FIG. 2 (c), by widening putting fingers of both hands in the space 22, the film 1 is easily unsealed torn from notch 3.

[0012] Example 2 FIG. 3 is a partial plan view showing the opening structure of the second embodiment. As shown in FIG. 3, in the opening configuration of the second embodiment, two notches 31a, 31b are substantially in parallel with connecting the lower end of the broken cut line 2a of the U-shaped, which is engraved on the film 1 time It has been set. As a result, the 3 cuts into the notch 31a
1b Between the tag portion 31c is formed, it is possible to easily tear by subtracting picking it.

[0013] Example 3 4 is a partial plan view showing the opening structure of Example 3, FIG. 5 is a partial plan view showing the opened structure of another embodiment related to the third embodiment. To the film packaging easier to open, because it cuts according to the present invention is longer is desirable, to prevent the restriction due to the size of the tack labels, that torn during transport, the opening of Example 3 in the structure is obtained by so maintain its strength. cut like a dashed line. That is, in this embodiment provided by concatenating the tangential 2b broken short cuts 32a as shown in FIG. 4, in which a plurality of notches 32b, and 32c like a dashed line on the extension line. When sticking the tack labels 4, short cuts 32b, the film 1 of the proximity portion of 32c are stuck without hanging film packaging the direction.

[0014] Depending on material and the thickness of the film, without providing a notch and connected to the broken cut line, the same effect can be obtained by providing in proximity to the tangential 2c fracture incisions 33, as shown in FIG. 5 . As a result, the cuts 33
Can maintain the strength of the vicinity can be prevented inadvertently torn it in such as during transportation.

[0015] Example 4 FIG. 6 is a partial plan view showing the opening structure of Example 4. As shown in FIG. 6, in the opening configuration of the fourth embodiment, it is provided with a notch 34 in the cross-shaped. According to this it is possible to tearing the film 1 in multiple directions, it is possible to increase the flexibility for efficiency and properties of the films work.

[0016] Example 5 FIG. 7 is a partial plan view showing the opening structure of Example 5. In the above-described Examples 1-4, had been formed broken cut line a in a substantially U shape is not limited thereto, it may be provided cuts continuously connected or close to the broken cut line. Thus, for example, the same effect can be obtained by providing a V-shaped broken cut line 2d as shown in FIG.

[0017]

[Effect of the Invention] Since the present invention is configured as described above,
Even packaging products, etc. due to the relatively torn hard films such as films of polyethylene, there is excellent effect that can be easily opened film starting from the cut exposed by peeling off the tack label.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a plan view showing the opening structure of the first embodiment.

2 is a partial perspective view illustrating the opening process of film packaging by opening the structure of Example 1.

3 is a partial plan view showing the opening structure of the second embodiment.

4 is a partial plan view showing the opening structure of the third embodiment.

5 is a partial plan view showing the opened structure of another embodiment related to the third embodiment.

6 is a partial plan view showing the opening structure of Example 4.

7 is a partial plan view showing the opening structure of Example 5.

DESCRIPTION OF SYMBOLS

1 ‥‥‥ film 2 ‥‥‥ broken cut line 3 ‥‥‥ notch 4 ‥‥‥ tack label 41 ‥‥ unbonded portion 21 ‥‥ inner portion 22 ‥‥ space

Claims (5)

[The claims]
1. 1. A engraved the tangential broken tack labeling of the package body tack label is adhered to the surface of the product the packaging film, at the time of peeling of the tack label, part of the film to the tack label in the film packaging opening structure to be yabukita adhesion to broken cut line as a starting point,
   The broken at least one opening structure of the film wrapping, characterized in that a cut of that provided continuously to a portion of the cut line.
2. 2. A engraved tangential broken tack labeling of the package body tack label is adhered to the surface of the product the packaging film, at the time of peeling of the tack label, part of the film to the tack label in the film packaging opening structure to be yabukita adhesion to broken cut line as a starting point,
   Unsealing structure of the film wrapping, characterized in that a least one cut close to the broken cut line.
3. Wherein incisions, thermal switch characterized in that it is inscribed by a sharp jig without a claim 1 or 2 unsealing structure of the film package according.
4. 4. A fracture cut line engraved into shaped substantially U, open structure of the film package according to claim 1, wherein it has engraved on the lower end direction of the shape of the symbolic U notches.
5. 5. A plurality of notches tearing the film, opening the structure of the film package according to claim 2, characterized in that provided in the broken line shape toward the direction.